air in baseboard

[jackwhh]

I have air in my hot water baseboard.
I'm having problems with a couple of the zones. The water and air can be heard moving through the system when the circulators come on.
I believe the air is the problem and resulting in not enough water moving through the lines.
I un capped the valve at the top of the air scoop and press the valve core down, but nothing happens.
I had problems a few months ago with excessive pressure, and a new flow control valve fixed that. I also changed the expansion tank and installed a new pressure release valve.
Everything seemed to be ok, but now with the very cold weather and most of the zones pumping I can hear air traveling throughout the system.
I have an oil fired peerless boiler with six zones, each on an independent B&G circulator.

Jack Hirleman

[Minasizer]

quote:Originally posted by jackwhh

I have air in my hot water baseboard.
I'm having problems with a couple of the zones. The water and air can be heard moving through the system when the circulators come on.
I believe the air is the problem and resulting in not enough water moving through the lines.
I un capped the valve at the top of the air scoop and press the valve core down, but nothing happens.
I had problems a few months ago with excessive pressure, and a new flow control valve fixed that. I also changed the expansion tank and installed a new pressure release valve.
Everything seemed to be ok, but now with the very cold weather and most of the zones pumping I can hear air traveling throughout the system.
I have an oil fired peerless boiler with six zones, each on an independent B&G circulator.

Jack Hirleman

I had this issue in my home. The heating system was losing pressure. Their was a value in one of the baseboard I forgot to bleed. After I released the air from the value I still had the problem. I finally found a leak in my basement that was letting air into the system causing the pressure to drop. After the leak was repaired water pressure was retained. There is also some type of sensor you can get that would let water into the system when needed

Hope this helps
Mike Goral